Resonant loop resistive FET mixer

Details Resonant loop resistive FET mixer Resonant loop resistive FET mixer

1991-11-05

1993-11-16

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, H04B 128

Patent

active

052631982

ABSTRACT:
A mixer includes a local oscillator (LO) matching network having an LO input port, an RF matching network also having an input port and an IF filter which provides an IF output from the mixer. A FET having a gate, drain and source operates at the center of the mixer. A resonant loop is connected between the drain and gate of the FET. The gate of the FET is connected to an output of the LO matching network. The drain of the FET is connected to an output of the RF matching network. The source of the FET is connected to an input of the IF filter. The resonant loop may incorporate a DC blocking capacitor which does not function as part of the resonant loop, but which serves to block DC allowing the drain and gate of the FET to be biased independently.

REFERENCES:
patent: 3617898 (1971-11-01), Janning
patent: 3716730 (1973-02-01), Cerny
patent: 4160213 (1979-07-01), Carter
patent: 4219779 (1980-08-01), Shinkawa et al.
patent: 4308473 (1981-12-01), Carnes
patent: 4327445 (1982-04-01), Tanaka
patent: 4463273 (1984-07-01), Dingwall
patent: 4592095 (1986-05-01), Ohnishi et al.
patent: 4658440 (1987-04-01), Pavie et al.
patent: 4896374 (1990-01-01), Waugh et al.
patent: 4931799 (1990-06-01), Wen et al.
patent: 4949398 (1990-08-01), Maas
A GaAs MESFET Mixer with very low intermodulation, Stephen A. Maas, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-35, No. 4, Apr. 1987, pp. 425-429.

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